Stainless steel 321 tubing is a type of austenitic stainless steel that is heat-resistant and resistant to corrosion. It is often used in applications requiring high temperatures such as boilers, pressure vessels and exhaust systems.
Grade 321 is an austenitic alloy, which is stabilized with the help of titanium. The Stainless Steel 321 Tube provides excellent corrosion resistance properties and acts as a sterilizing agent.
Valour Alloy Inc., we carry a full inventory of Stainless Steel 321 tube is distinguished by its titanium content, which enhances its resistance to high-temperature-induced corrosion and maintains its structural integrity during welding. This makes it the preferred choice for many industrial applications Valour Alloy specializes in Stainless Steel 321 Tube with years of Experience in Manufacturing Stainless Steel 321 Tube. we offer high quality, lower cost but the best service. As a result to that our Stainless Steel 321 Tube export account today is in various countries like Iran, Iraq, Kuwait, Saudi Arabia, Oman, UAE, Singapore, Malaysia, Indonesia, South korea, Chile, Peru, Venezuela, Australia, Nigeria, Angola, Senegal, Mozambique, Algeria, Libya, Azerbaijan, Netherlands, Brazil, Norway, United Kingdom, Mexico, Canada etc.

Stainless Steel 321 Seamless Tubes

Stainless Steel 321 Welded Tubes
We Supply Stainless Steel 304 Tube s in Grades in Specification ASME SA /ASTM A269, A312, A213 and Grades 202, 304, 304L, 304H, 304LN, 309s, 310s, 316, 316L, 316H, 316Ti, 316LN, 317L, 321, 321H, 347, 347H, 904L, 254 SMO , 6MO , 6 MOLY, UNS S31254 etc. The grade indicates the testing methods required for a given application.
What Makes Stainless Steel 321 Tube Different from Other Grades?
Valour Alloys Inc. explain here What Makes Stainless Steel 321 Tube Different from Other Grades? There are popular 2 reasons such as Titanium Stabilization and High-Temperature Performance this both features make the SS 321L tube different from other grades when we talk about Titanium Stabilization it is known for austenitic stainless steels, prolonged exposure to high temperatures or welding can lead to the formation of chromium carbides at grain boundaries. In this process, is known as sensitization and adding titanium (typically around 0.7–1.2%), the titanium forms stable titanium carbides instead of chromium carbides. Stainless Steel 321 Tube also known for High-Temperature Performance better suited for environments where the material will experience cyclic or continuous high temperatures.
Understanding the Manufacturing Process of Stainless Steel 321 Tubes
We are providing here the Proper Way of Manufacturing Stainless Steel 321 Tubes with proper chemical composition and mechanical properties. There are several steps for production The process starts with selecting High-Quality Raw Materials. For Stainless Steel 321, this includes iron, chromium, nickel, and importantly, titanium. When our row material meets the right composition It is cast into billets or slabs using the continuous casting process.
Then we start Hot Rolling and Forming the Hot rolling refines the grain structure and shapes the metal into plates or strips that serve as the starting material for tube production. The tube forming its divided into two parts such as Seamless Tube and Welded Tubes Depending on the end-uses of the tubes. After the hot rolling and forming we cover the heat treatment and surface finishing then we go for the Final Processing and Inspection Sizing, Cutting, and Straightening The tubes are cut to the required lengths, and any necessary straightening or sizing is performed to meet dimensional specifications.
Top 3 Cost-Effective Uses for Stainless Steel 321 Tube
Do you know? SS 321 Tube comes with the top three cost-effectiveness items such as High-Temperature, Welding and Fabrication and Chemical Processing Equipment. When Valour Alloys Inc. talk about the High-Temperature SS 321 Tube taking less money for production and providing the best output for piping in chemical plants, power generation facilities, and refineries other industries also. We are explaining below some essential points.
- High-Temperature Piping
- Welding and Fabrication Projects
- Chemical Processing Equipment
Our Stainless Steel 321 Tube is mostly used in welding and fabrication industries also The titanium stabilization in 321 minimizes weld decay, making it easier and more economical to fabricate complex assemblies. chemical industries also use SS 321 tubes because they take less maintenance or costly downtime that why most of industries prefer the Stainless Steel 321 Tube.
Corrosion Resistance and Heat Resistance in 321 Tubes
One of the standout features of Stainless Steel 321 Tubes is their corrosion resistance, particularly in high-temperature applications. The addition of titanium helps to prevent the formation of chromium carbides, which can lead to intergranular corrosion. In terms of heat resistance, 321 tubes can maintain their mechanical properties and structural integrity in temperatures up to 1500°F (815°C), making them suitable for applications that experience thermal cycling.
Stainless Steel 321 tube Range
SS 321 Tubes Outer Diameter Size | SEAMLESS - 6 MM OD TO 114.3 MM OD WELDED / ERW- 10 MM TO 114.3 MM OD |
SS 321 Tubes Wall Thickness | 0.8 MM TO 4 MM WALL THICKNESS |
SS 321 Tubes Length | 01 Meter to 12.5 Meters, Single Random Length, Double Random Length And Customize Size. |
SS 321 Tubes Ends | Plain Ends / Beveled En |
SS 321 Tubes Specification | ASTM A-249, A-268, A-269, A-270, A-554, A-688, A-778, DIN 17455, DIN 17456, 17457, DIN 17458 [Class 1] & Its equivalent ASME, DIN & EN Standard. |
SS 321 Tubes Grades | 202, 304, 304L, 304H, 304LN, 309S, 310S, 316, 316L, 316H, 316Ti, 316LN, 317L, 321, 321H, 347, 347H, 904L, SMO 254, ALLOY 254, 6MO, 6MOLY, UNS S31254 ETC. |
SS 321 Tubes Dimension | All Pipes Is Manufactured and Inspected / Tested to the Relevant standards including ASTM and ASME |
SS 321 Tubes Type | SEAMLESS / WELDED / ERW / EFW / COLD DRAW / HOT FINISH / COLD FINISH |
SS 321 Tubes Delivery Conditions | As Rolled, Formed, Stress Relieved, Annealed, Hardened, Tempered, Cold Draw |
SS 321 Tubes Coating | Electropolish, Mechanical Polish, Satin Finish, Passivated |
SS 321 Tubes Machinery | Draw Bench / Pilger / De-Coiler / Edge Miller / Welding Line / Heat Treatmen Furnace / Pickling Tank / Cutting Bench etc. |
SS 321 Tubes Value Added Services | Draw / Expansion / Machining / Sand Blasting / Shot Blasting / Heat Treatment |
SS 321 Tubes Packaging | Loose / Bundle / Wooden Pallet / Wooden Box / Plastic Cloth Wraps / Plastic End Caps / Beveled Protector |
SS 321 Tubes Shipment & Transportation | By Road - Truck / Train, By Sea - Break-bulk Conventional Vessel / FCL (Full Container Load) / LCL (Less Container Load) / 20 Feet Container / 40 Feet Container / 45 Feet Container / High Cube Container / Open Top Container, By Air - Freighter Civil Passenger and Cargo Planes |
SS 321 Tubes Other Testing | Product Analysis, Transverse Tension Test, Flattening Test, Etching Test, Radiographic Examination, Stabilizing Heat Treatment, Intergranular Corrosion Test, Weld Decay Test, Magnetic Particle Detection, Grain Size Test, NACE 0175, Dual Grade, PWHT (POST WELD HEAT TREATMENT), Flare Test, Bend Test, Hardness Test, Tensile Test etc. |
SS 321 Tubes Material Test Certificate | Manufacturer Test Certificate As Per EN10204 3.1, 3.2 / Laboratory Test Certificate From NABL Approved Lab. / Under Third Party Inspection Agency Like SGS, TUV, DNV, LLOYDS, ABS ETC. |
Chemical Composition of Stainless Steel 321 Tubes
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Other | |
321 | min. max |
- 0.08 |
2.00 | 0.75 | 0.045 | 0.030 | 17.0 19.0 |
- | 9.0 12.0 |
0.10 | Ti=5(C+N) 0.70 |
321H | min. max |
0.04 0.10 |
2.00 | 0.75 | 0.045 | 0.030 | 17.0 19.0 |
- | 9.0 12.0 |
- | Ti=4(C+N) 0.70 |
Mechanical Properties of Stainless Steel 321 Tubes
Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
Rockwell B (HR B) max | Brinell (HB) max | ||||
321 | 515 | 205 | 40 | 95 | 217 |
321H | 515 | 205 | 40 | 95 | 217 |
321H also has a requirement for a grain size of ASTM No 7 or coarser. |
Equivalent Grade of Stainless Steel 321 Tubes
Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
BS | En | No | Name | ||||
321 | S32100 | 321S31 | 58B, 58C | 1.4541 | X6CrNiTi18-10 | 2337 | SUS 321 |
321H | S32109 | 321S51 | - | 1.4878 | X10CrNiTi18-10 | - | SUS 321H |
347 | S34700 | 347S31 | 58G | 1.4550 | X6CrNiNb18-10 | 2338 | SUS 347 |
These comparisons are approximate only. The list is intended as a comparison of functionally similar materials not as a schedule of contractual equivalents. If exact equivalents are needed original specifications must be consulted. |
Other Available Products Of Stainless Steel 321 Tubes
Stainless Steel TP 321 Seamless Tube | A249 SS TP 321 Welded Tubes Suppliers |
ASTM A213 321 Stainless Steel Rectangular Tubes | TP 321 Stainless Steel ERW Tubes Distributors |
UNS S32100 Stainless Steel Coiled Seamless Tubing | Top Quality Stainless Steel TP 321 Heat Ex-changer Tubes |
Stainless Steel DIN DIN 1.4541 Round Tubing Exporter | TP 321 SS EFW Tubing Stockiest in India |
Stainless Steel JIS SUS 321 Cold Rolled Coiled Tubing | ASTM A269 321 Stainless Steel Tubing |
SS 321 Austenitic Stainless Steel Pipes & Tubes | ASTM A213 Stainless Steel TP 321 Capillary Tube |
Stainless Steel 321 U Shaped Tubing Stockholder | TP 321 Stainless Steel Hydraulic Tubes Suppliers |
Stainless Steel ASTM A213 TP 321 Welded Tubing | AISI Stainless Steel ASTM A213 321 Seamless Tubing |
SS ASME SA 249 TP 321 Welded Tubes Exporter | TP 321 Stainless Steel Instrumentation Tubes Exporter |
ASTM A358 321 Stainless Steel ERW Tubes Manufacturer | Stainless Steel TP 321 Seamless Tubing Supplier |
Test Certificates
We Stainless Steel 321 Tube with the following details Mill Test Certificate according to EN 10204 3.1, PMI Test, Test Report from NABL Approved Lab, 3.2 Certification by External Testing Authority third, ultrasonic test report, and X-ray report.
Marking & Packing
Our Stainless Steel 321 Tube is packaged to ensure no damage during transit. In the case of export, the standard export packing is in a wooden box. All Stainless Steel 321 Tube are marked with our grade, batch number, size and mark. We can also do custom branding on our products as per buyer's unique requirements
Supplying Stainless Steel 321 Tubes to Countries
We Export Stainless Steel 321 Tubes to Saudi Arabia, Iran, Iraq, United Arab Emirates, Qatar, Bahrain, Oman, Kuwait, Turkey, Egypt, Yemen, Syria, Israel, Jordan, Cyprus, Singapore, Malaysia, Indonesia, Thailand, Vietnam, South Korea, Japan, Sri Lanka, Maldives, Bangladesh, Mayanmar, Taiwan, Cambodia, Argentina, Bolivia, Brazil, Chile, Venezuela, Colombia, Ecuador, Guyana, Paraguay, Uruguay, United States of America, Canada, Mexico, Panama, Costa Rica, Puerto Rica, Trinidad And Tobago, Jamaica, Bahamas, Denmark, Russia, Norway, Germany, France, Italy, United Kingdom, Spain, Ukraine, Netherland, Belgium, Greece, Czech Republic, Portugal, Hungary, Albania, Austria, Switzerland, Slovakia, Finland, Ireland, Croatia, Slovenia, Malta, Nigeria, Algeria, Angola, South Africa, Libya, Egypt, Sudan, Equatorial Guinea, The Republic Of Congo, Gabon, Europe, Africa, Asia, North America, South America, Middle East, Far East Etc.
Distributing Stainless Steel 321 Tubes to Cities
We Export Stainless Steel 321 Tubes to Navi Mumbai, Indore, Baroda, Muscat, Secunderabad, Gimhae-si, Kanpur, Colombo, Kuala Lumpur, Bhopal, Pimpri-Chinchwad, Rajkot, Haryana, Hanoi, Ernakulam, Chandigarh, Surat, Los Angeles, Hong Kong, Ahmedabad, Perth, Petaling Jaya, Hyderabad, Mumbai, Algiers, Edmonton, Ludhiana, Ho Chi Minh City, Karachi, Bangkok, Dallas, Bengaluru, Jakarta, Granada, Seoul, Cairo, Geoje-si, Rio de Janeiro, Abu Dhabi, Port-of-Spain, Sydney, London, Courbevoie, Vung Tau, Sharjah, Jaipur, Lahore, Chennai, Istanbul, Lagos, Thane, Dubai, Coimbatore, La Victoria, Calgary, Jeddah, Busan, Mexico City, Al Khobar, Caracas, Singapore, Atyrau, Manama, Kolkata, Riyadh, Jamshedpur, Brisbane, Toronto, Noida, Ahvaz, Vadodara, Doha, Visakhapatnam, Ulsan, New Delhi, Gurgaon, Bogota, Howrah, Moscow, Nashik, Ranchi, Nagpur, Al Jubail, Houston, Milan, Chiyoda, Aberdeen, Melbourne, New York, Dammam, Montreal, Santiago, Kuwait City, Pune, Tehran, Thiruvananthapuram, Faridabad, Madrid, Ankara Etc.